Hi, sorry to interrupt. I have some question, maybe about web3 or truffle-contract. i have to know is there any way to call smart contract without gas, by having other to pay its gas

after some google, in theory we can do this: 1. create transaction, sign it. 2. send the result to server 3. in server that have wallet/address and have ether/gas, publish it on eth blockchain

anyone have do those step, using solidity/web3/geth ?

I am not sure if teorically you can do that with a simple tx..
But practically you can try doin these steps
1. create and sign tx, using web3 js locally at client
2. send result from client to server using json format e.g.
3. send the tx from server s acc using web3

I am interrseted as well, let me know your experiments pls!

Maybe the third part is not possible and you have to use a smart contract

Still dont have time to do this experiment, im not sure if we do these, who ll pay the gas